Alpons mauser



- 1,628,259 A. MAUSER PROCESS AND APPARATUS FOR INCREASING THE STRENGTH 0F ARTICLES May 10 1927.

WITNESS .A Y l/Wf/VTOH mg flL f'fl/YS yxws ER WW A TTORNE VS Patented May 10, 19 27.

UNITED STATES ALFONQMAUSER, OI COLOG NE-MARIENBURG, GERMANY.

PROCESS APPARATUS FOR INCREASING THE STRENGTH 0F ARTICLES.

. k Application filed November 6,1924, Serial No.

My invention relates to articles made of sheet -metal or similar material of a thickness enabling the article to be corrugated for the purpose of strengthening it. The invention is applicable to plate-like articles as well as to tubular ones. The object of my invention is to corrugate such articles in a simple and effective manner, while preventing material changes in either the thickness or surface length of the material and the distortion and'irregular results which accompany the procedures hitherto employed for corrugating operations. The objection-' able lack of uniformity in the individual products of the processes employed heretofore, and the distortion of certain portions of the material, were due largely to the fact that prior to my invention at least one of the instrumentalities or sets thereof used for producing the corrugations were mounted for movement transversely to the plane of the blank during the corrugating action and the pressure uponthe blank was not equally distributed.

i In my present invention, both surfaces of the. article or blank are engaged bycorrugation-producing elements which are held stationarily in planes extending transversely to the g facesof the blank during the corrugating action although thrgr may be moved longitudinally of the blank, and the said elements are so constructed and arranged that the pressure is equally distributed over ma large area of the blank.

Three ways of carrying out the invention are illustrated, as examples, by the accompanying drawings, in which Fig. 1 is a fragmentary face view of a treatment according to this invention; F g

late prior to its 2 is amedgeview of said plate in conjunction with a diagrammatic representation of the corrugating' mechanisrmat the entrance end of such mechanism; Fig. 3 is a side view of such mechanism; Fig.4 is a' view similar to Fig. 2, but showing't-he-pl'ate and corrur gating mechanism at the outlet end of such mechanism; .Fig. 5 is a' fragmentary face view of the finished corrugated plate; Fig. 6 is a diagrammatic representation of a mechanism for corrugating a tubular body,

and also indicates both the ori inal and the final shape of said body; Fig. isa partial sectional elevation, in an axial plane, of

' another form'of mechanism for eorrugating 748,031, and in Germany September 20, 1924.

or substantially so, is introduced between the upper ends of two opposing sets, b, b,

of stationary ribs or corrugating elements which converge from the inlet end of the apparatus (showna't the top) to the outlet end (shown at the bottom). ribs orelements of one set out of line with those of the other set, that is, the ribs 1).

alternate with the ribs b., At the entrance end, the opposing edges of the ribs of the two sets are shown as spaced sufiiciently to' provide a narrow channel to allow the plate a to be inserted between them freely. At the outlet end, however, the opposing edges of the ribs b, b, overlap, as shown clearly in Fig]. 4, and it will be understood from Fig. 3 t at there is a gradual transition from the relative arrangement of the ribs illustrated by Fig. 2, to that shown in Fig. 4,.so that the forcing of the plate a downwardly) between the said ribs, towar the outlet of the The corrugating mechanism will not only reduce the width of the plate, but at the same time form therein corrugations which, from being very shallow at first increase in depth as the outlet is approached. Evidently it is immaterial whether the plate is moved downward while the corrugating elements are stationary, or

, these elements are moved upward while the plate is stationary, or downward movement of the plate is combined with an upward movement of the corrugating mechanism. A comparison of Fi s. 2 and twill also show that in this specific construction the ribs b, b, taper .lengthwise, being wedge-shaped,

with their upper ends narrower than their lower ends. This gives the ribs greater width andstrength toward the outlet of the apparatus, where the corrugatingefl'ect is greatest. It will be cleapthat by giving the ribs b, b, a suitable sha e or cross section and altering their radial ep th-iand their araoaaaae ing to Fi .6 to are originally of cyinstance oval .or angular) may be corrugated accordin to t e same principle, the arrangement 0 the inner and outer corru- 1 atin members being varied accordingly.

ubu ar blanks corrugated according to this invention are intended particularly for use as the bodies of barrels and like containers.

It will be obvious that provision .may be made for the, radial adjustment (in or out) of the outer and inner blades b 1), and b b, 're'spectively, thereby enabling the same apparatus to be used for corrugating tubular blanks of different diameters. If

it is desired to vary the depth of the corrugations, this may be done by making the backing ring '11 of different outer diameter.

Should it be desired to contract the end of the tubular blank to a lesser extent than would result from forcing it completely to the lower end of the apparatus as described 7 above, the-press P may be stopped when the desired result has been obtained.

.VVhether dealing with tubular blanks or others (for instance plates, as in Figs. 1 to 5) my invention is not restricted to corrugating the entire surface of the blank at the same time, as in the specific embodiments some of the corrugating elementsonly a porcorrugating members which are tion of the blank would be treated, thereby enabling certain portions of the blank to be thus produced will be absolutely uniform,

' that is, there will be no objectionable variation either in the outer dimensions of the g iple of operation being the same.

.finished articles or in the number or depth of the corrugations. Furthermore, as the pressure of the corrugating members is exerted gradually upon thev blank as it is passed between said members and is uni- I formly distributed along the entire length of the corrugating members, no'material distortion of the thickness or length of the material occurs. While I have described the corriigating action as being produced by moving the blank longitudinally of the ressure producing elements, it will be understood that a longitudinal movement of either the elem'entssilone or both the blank and the elements is the full equivalent 'of the movement of the blank alone, the prinalong a pluralit shown. It Wlll be ObVlOllS that by removing,-

Various modifications may be made without departin from the nature of my invention as set 'orth in the claims.

I claim: q

1. The process ofcorrugating a blank of bendable material to form a container having a'" corrugated end portion, the diameter of which increases progressively from the end towards the mid-length of saidcontainer which consists in exerting pressure upon op-' posite sides of said blank along a plurality of spaced line contacts only, by means of pressure producinginstrumentalities distributed along spaced longitudinally extending converging lines inclined laterally to the sides of said blank in overlapping staggered relationship, and producing relative longitudinal movement between said blank and the pressure producing instrumentalities, while preventing movement of the pressure producing instrumentalities relatively toeach other during the corrugating action to form progressively and simultaneously in said blank a plurality of longitudinally ex tending corrugations of gradually increasing depth by a combined longitudinal and transverse folding of the material.

2. The process of corrugating a blank of bendable material which consists in exerting pressure upon opposite sides of said blank of spaced line contacts only, by means 0 pressure producing instrunientalities distributed along spaced longitudinally extending converging lines inclined laterally to the sides of said blank in overlapping staggered relationship, pro- -ducing relative longitudinal movement between said blank and the pressure producing instrumentalities, while preventing movementof the pressure producing instrumentalities transversely of said blank to form simultaneously therein a plurality of longi-- tudinally extending corrugations of gradu- -'ally increasing depth, and continuing said movement to subject the entire length of said blank to said pressure .to form the final prodnot into longitudinally extending corrugations of uniform depth.

3. The process of corrugating a tubular blank of bendable material which consists in subjecting opposite sides of said blank to pressure exerted with a substantially equally distributed pressure by means of pressure producing instrumentalities along spaced longitudinall extending converginglines inclined latera ly to the sides of said blank in overlapping staggered relationship and roducing relative longitudinal movement etween said blank and the ressure exerting instrumentalities, -whi e preventing movement between the pressure producing instrumentalities relatively to each vother during the corrngating action. 4. The method of subjecting a blank of bendable materialto the corrugating action 130 of two sets of elements arranged in alternatmg overlapping relationship to contact with the opposite sides of the blank and hav'in substantially a line contact only with sai blank characterized by arranging the elements of one set to converge towards the elements of the other set and passing said blank between said sets of elements by producing relative longitudinal movement between said blank and elements while preventing relative movement between said elements, the corrugating action being produced entirely by said elements and said relative movement.

5. A corrugating apparatus comprising a plurality of pressure members arranged in two sets to exert a substantially equally distributed pressure with substantially a line contact only upon dpposite sides of a blank of bendable material along longitudinally extending lines inclined transversely to the sides of said blank when said blank is forced longitudinally between said elements, the active edges of the members of the same set being closer at one end thereof than at the other end, and the active edges of the elements of one set overlapping,

those of the other set in staggered relationship to an extent which increases towards said end.

'6. A corrugating apparatus comprising a plurality of pressure members, arranged in alternation to form inner and outer annular opposed sets to engage the opposite sides. of a tubular blank, along spaced longitudinally extending lines, the members of each set converging laterally towards each other and arral'iged in progressively overlapping staggored relationship with the members of the other set; from the entrance to the delivery end of said apparatus to exert a corrugating action upon the blank when relative longitudinal movement is produced between said blank and pressure members, and supports to hold said pressure members against movement relatively to each other during the corn-ligating action.

7. A corrugating apparatus comprising a plurality of pressure members arranged in alternation to form. inner and outer an-- nular opposed sets to engage the opposite sides of a tubular blank along spaced longitudinally extending curved lines, the'members of each set converging laterally towards each other and arranged in progressively overlapping staggered relationship with the members of the otherset from the entrance l to the delivery end of said apparatus to exert a corrugating action upon the blank when relative longitudinal movement 18 produced druing the corrugatin neaaaeo between said blank and pressure members and supports to hold said pressure members against movement relatively to each other action, one of said supports being remova le to permit one or said sets of members to be released to permit removal of said'blank from said apparatus 8. corrugating apparatus comprising longitudinal corrugating elements arranged in two sets spaced from each other so that they may engage the blank along spaced lines on opposite sides, the members of one set forming an inner annular set, while the members of the other set form an outer annular set, the members of one set being stationary, While those of the other set are pivoted to swing toward and from said stationary members, and means for positively holding said pivoted members against move ment in their active or working position.

9. A corrugating apparatus comprising longitudinal corrugating elements arranged in two sets spaced from each other so that they may engage the blank along spaced lines on opposite sides, the members of one set forming an inner annular set, while the members of the other set form an outer annular set, the members of one set being stationary, while those of the other set are pivoted to swing toward and from said stitionary members, and a movable locking member arranged to engage and arrest. all of said pivoted members and hold them positively against movement in their active or working position,

10. The process of corrugating a-blank of'loendable material which consists in producing relative longitudinal movement between said blank and a plurality of pressure producing instrumentalities, arranged along a plurality of spaced, longitudinally extend lug, converging, lines, inclined laterally to the sides of said blank upon opposite sides my hand.

ALFONS li lAUSlER.

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v 1,62 60 May 10. 1927. J. (MAXIM 8,2

' rowan 'mmsuxs sxou UNIT Filed Oct. 27. 1926 '2 Sheets-Sheet 1 

